CVE-2021-24269Network attack vector

Stored XSS via unvalidated widget tag parameters

Published May 5, 2021 · Updated Aug 3, 2024

Stored XSS in Sina Extra Sina Extension for Elementor before 3.3.12 allows remote authenticated users to execute JavaScript in visitors' browsers. Banner Slider's title_tag and subtitle_tag parameters, plus similar tag parameters in three widgets, accept JavaScript in save_builder requests and render it without escaping. Contributor access is required, and viewing or previewing the saved page triggers the payload, enabling actions in the victim's WordPress session, including administrator account takeover.

CVSS severity5.4
Medium
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in Sina Extra Sina Extension for Elementor before 3.3.12 allows remote authenticated users to execute JavaScript in visitors' browsers. Banner Slider's title_tag and subtitle_tag parameters, plus similar tag parameters in three widgets, accept JavaScript in save_builder requests and render it without escaping. Contributor access is required, and viewing or previewing the saved page triggers the payload, enabling actions in the victim's WordPress session, including administrator account takeover.

The record

CVE
CVE-2021-24269
Published
May 5, 2021
Updated
Aug 3, 2024
Vendor
Sina Extra
Product
Sina Extension for Elementor
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 5, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3.12 <3.3.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sina Extra · Sina Extension for Elementorversion=3.3.12 <3.3.12

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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